| Name | Relationship with Natalie Seiwell | Civil | Canon |
| 5th cousin 25 times removed | XXXVII | 31 |
| 8th cousin 20 times removed | XXXVIII | 29 |
| 8th cousin 21 times removed | XXXIX | 30 |
| 8th cousin 22 times removed | XL | 31 |
| 8th cousin 23 times removed | XLI | 32 |
| 8th cousin 24 times removed | XLII | 33 |
| Husband of the half 4th cousin 19 times removed | | |
| Husband of the half 5th cousin 19 times removed | | |
| Husband of the 5th cousin 19 times removed | | |
| Husband of the half 4th cousin 22 times removed | | |
| Husband of the 6th cousin 20 times removed | | |
| Husband of the half 5th cousin 22 times removed | | |
| Husband of the 7th cousin 18 times removed | | |
| Husband of the 5th cousin 22 times removed | | |
| Husband of the 6th cousin 23 times removed | | |
| Husband of the 7th cousin 21 times removed | | |
| Husband of the 10th cousin 19 times removed | | |
| Husband of the 10th cousin 20 times removed | | |
| Husband of the 12th cousin 17 times removed | | |
| Husband of the 10th cousin 21 times removed | | |
| Husband of the 11th cousin 20 times removed | | |
| Husband of the 11th cousin 22 times removed | | |
| Husband of the 12th cousin 20 times removed | | |
| Husband of the 10th cousin 24 times removed | | |
| Stewart, James Macrory | 21st great-grandfather | XXIII | 23 |
| 23rd great-grandfather | XXV | 25 |
| 21st great-granduncle | XXV | 24 |
| 24th great-grandfather | XXVI | 26 |
| 22nd great-granduncle | XXVI | 25 |
| 23rd great-granduncle | XXVII | 26 |
| 24th great-granduncle | XXVIII | 27 |
| 1st cousin 24 times removed | XXVIII | 26 |
| 1st cousin 25 times removed | XXIX | 27 |
| 1st cousin 26 times removed | XXX | 28 |
| 1st cousin 27 times removed | XXXI | 29 |
| 1st cousin 28 times removed | XXXII | 30 |
| 1st cousin 29 times removed | XXXIII | 31 |
| 4th cousin 24 times removed | XXXIV | 29 |
| 4th cousin 25 times removed | XXXV | 30 |
| 4th cousin 26 times removed | XXXVI | 31 |
| 4th cousin 27 times removed | XXXVII | 32 |
| 4th cousin 28 times removed | XXXVIII | 33 |
| Stewart, James Of Periston Bonkyl | 20th great-granduncle | XXIV | 23 |
| 1st cousin 22 times removed | XXVI | 24 |
| 1st cousin 23 times removed | XXVII | 25 |
| 1st cousin 24 times removed | XXVIII | 26 |
| 1st cousin 25 times removed | XXIX | 27 |
| 2nd cousin 23 times removed | XXIX | 26 |
| 2nd cousin 24 times removed | XXX | 27 |
| 2nd cousin 25 times removed | XXXI | 28 |